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Cytotoxicity of PEG-b-PCL-g-ALD polymer (4), DOX·HCl, and PEG-b-PCL-g-DOX PDC (5) against MCF-7 cells after 24 h incubation. Each data point with error bars represents the mean value ± the standard deviation obtained from three independent measurements. Polymer (4) was used as the same molar concentration of PDC (5).
